gcc/testsuite/g++.dg/warn/Wmismatched-tags-9.C

   1 /* PR c++/103703 - ICE with -Wmismatched-tags with friends and templates
   2    { dg-do compile }
   3    { dg-options "-Wall -Wmismatched-tags" } */
   4
   5 template <typename T>
   6 struct A
   7 {
   8   struct B { };
   9 };
  10
  11 template <typename T>
  12 struct C
  13 {
  14   friend class A<C>::B;       // { dg-warning "-Wmismatched-tags" "pr102036" { xfail *-*-* } }
  15 };
  16
  17 template struct C<int>;
  18
  19
  20 template <typename T>
  21 struct D
  22 {
  23   friend class A<D>::B;       // okay, specialized as class below
  24 };
  25
  26 template <>
  27 struct A<long>
  28 {
  29   class B { };
  30 };
  31
  32 template struct D<long>;